Brush.



W. T. SHERMAN.

BRUSH.

APPUCATION HLED lAN.4. I916- RENEWED FEB. 25. 1918.

Patented Aug. 27, 1918.

2 SHEETSSHEET 1-.

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W. T. SHERMAN.

. BRUSH.

APPLICATION FILED JAN.4. I9l6. RENEWED FEB, 25. 1918. 1,277,142.Patented Aug. 27, 1918..

. 2 SHEETS-SHEET 2.

/ 7 VIII" okg -gw/l 1720622 for" WILLIAM 'r. SHERMAN, or TROY, NEW YORK,ASSIGNOR,BY MESNE"ASSIG1\TME1\TTS, TO HENRY L. HUGHES 00., Inc, or NEWYoRK, N. Y.,IAYGORPORATIQ1\T on NEW YORK.

BRUSH Specificationof Letters Patent. Patented A11 2'7, 1918.

Application filed J'anuary l, 1916, Serial No. 70,269. Re e e Februar25, 1918.: Serial a... 219,157.

To all whom it may concern:

Be it known that I, WV LLiAM T. SHER- MAN, a citizen of the UnitedStates, residing at Troy, county of Bensselaer, and State of New York,have invented certain new and useful Improvements in Brushes, .of whichthe following is a specification.

Reference may be had to the accompany ing drawings, and the referencecharacters marked thereon, which form a part of this specification.Similar characters refer: to similar parts inthc severalfigures therein.

The invention relates to a type of toiletbrush in which the bristles aresupported by an elastic pad or sheet which is inserted and secured in arecess inthe brush-back, and preferably so confined by the walls of therecess that the pad is held inn buckled position so as to present anoutwardly curved or convexed surface from which the bristles divergentlyproject.

The principal. object of the present inven- .tion is to tightly securethe edges of the pad within the recess inthe brush-back.

Other objects will appear in connection with the following description;Figure 1 of the drawings is a plan view of the face of a brush embodyingmy invention, with a portion of the bristle-supporting pad broken away,and, an edge-portion of the pad and the wall of the recess inthe.

brush-back shown in horizontal section.

Fig. 2 1s a plan view of the opposite side of the brush with thebrush-back partly cut away and shown in horizontal section.

Fig. 3 is a vertical cross-section of the brush taken on the broken line33 in Fig. 2.

Fig. 4 is a vertical cross-section of the brush taken on the broken line4L in Fig. 2.

Fig. 5 is a central, vertical longitudinal sectiontaken on the brokenline 55 in Fig. 2.

Fig. 6 is a plan view of the clamp-plates and the operating wedgeseparated from one another.

Referring to the drawings wherein the invention is shown in preferredform, 1 represents the brush-back formed with a recess, 2, of a form andsize adapted to receive the bristle-supporting pad, 3, the edge-portionof which closely fits within the recess.

The bristles, 4, may be attached to the pad, 3, in any known manner.

The pad is formed of elastic material, preferably soft rubber, and ispreferably of such a size that when its edge-portion has beenforcedintothe recess, 2, in the brushback, the pad will be buckled orcurved outwardly, presenting a conveXed outer surface from which thebristles divergently project.

In the drawings a preferred form ofrece'ss is shown, the wall of whichis undercut to form a groove, 5, well adapted to receive the insertededge of the pad.

In carrying out my invention, I inclose between the" pad and thebrushback,.cla1nping-mechanism cooperative with the wall of the recessto clamp thereagainst the edgeportion of the pad.

In the preferred form of my invention shown, this clampingmechanismcomprises a pair of relatively movable clamp-plates, 6, and a movablewedge, 7, interposed between said clamp-plates.

The outer edge-portions of the clampplates, 6, conform approximately tothe contour'of the side w all of the recess against which the insertededge-portion of the pad rests, and serve, when the clamp-plates havebeen forced apart by the wedge, to securely clamp the edge-portion ofthe pad against the wall of the recess. i I

The clamp-plates and wedge may be made of wood,"metal or other suitablematerial, but I prefer to makethe clamp-plates of wood, and the wedge ofmetal; and to form on opposite sides of the wedge a series of teeth, 8,which become embedded in the edges of the wooden clamp-plates when the awedge is driven in between them and thereby effectively preventwithdrawal of the wedge. Y

The wedge is preferably provided with a longitudinal slot, 9,through'which one or more headed nails or pins, 10, are driven into thebrush-back, forming a loose guide for the wedge in its movement, andretaining the wedge in connection with the brushback while the pad isbeing inserted and clamped within the recess.

In completing the brush, the clamps, 66, are laid within the recess inthe brush-back on opposite sides of the wedge which is withdrawnsufficiently to leave a suitable space between the outer edges of theclampplates, and the side wall of the recess into which space theedge-portion of the pad is inserted, after which the edge is driven inbetween the elainpplates by means of a pin or other suitable tool, 13,inserted through a perforate opening, 11, formed in the wall of therecess, which opening may also serve as a vent-opening when the brush isin use.

When the wedge has been well driven in between the clamp-plates, theclamp-plates will be so spread apart that their outer edges willtightlyclamp the edge-portion of the pad against the wall of the recess, notonly securely retaining the pad in position, but making a practicallywater-tight joint between the pad and the brush-back.

To facilitate the action of the wedge, the

clamp-plates may have formed on their inner edges, where engaged by thewedge, in clined surfaces, 12, corresponding with the taper of thewedge.

The ends of the clamp-plates are preferably cut away or rabbeted as at14, to permitthe plates to lap one another at their ends so as to makecontact with the edgeport ion of the pad throughout the extent of itsinternal periphery.

.The walls of the recess, 2, may be of any form suitable for properlysupportingthe edge of the pad in opposition to the. thrust of theinclosed clamping-mecharrism; and various changes in the form of theinclosed claniping-mechanism are possible without departing from thespirit of my invention.

I make no claim herein broadly to means inclos ed between the pad andthe brushback cooperative with the wall of the recess to secure theedge-portion of the pad within the recess as this feature is genericallyclaimed in my copending application Serial Number 115,951, filedAugustZl, 1916, for

brush, and which application is for cerfive cents each, by Washington,D. 0.

recess, and an elastic bristle-supporting pad the edge-portion of whichfits within said recess, and having lDClOSGClbQtWQGll the pad and thebrush-back an expansible clamp cooperative with the wall of the recessto clamp thereagainst the edge-portion of the pad, and a clamp-expandingmember.

'2. A brush having a back provided with a recess and with a perforateopening through a wall ofthe recess, and an elastic bristle-supportingpad the edge-portion of which fits within said recess, andhavinginclosed between the pad and the brush back an cxpansible clampcooperative with the wall of the recess to clamp thereagainst'theedge-portion of the pad, and a clamp-expanding member accessible foroperation through said perforate opening.

3. A brush having a back provided with a recess and with a perforateopening through a wall of the recess, an elastic bristle-supporting padthe edge-portion of which fits within the recess, and clamping-mechanisminclosed between the pad and the brushback comprising relatively movableclampplates cooperative with the wall of the recess to clampthereagainst the edge-portion of the pad, and a movable wedge interposedbetween the clamp-plates and accessible for operation through saidperforate opening.

In testimony whereof, I have hereunto set my hand this 30th day ofDecember, 1915.

WILLIAM T. SHERMAN.

addressing the Commissioner of Patents,

